<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>页面布局-面包屑+左导航+右内容</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" type="text/css" media="screen" href="./css/layout.css">
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
</head>

<body>
    <div class="layout">
        <div class="layout-header">
            <button>数据集</button>
            <button>数据源</button>
            <button>值域</button>
        </div>
        <div class="layout-content">
            <div class="layout-content-list-left">内容信息：content-list-left</div>
            <div class="layout-content-list-right">
                <form>
                    <select multiple="multiple" name="cars" id='select'>
                        <option value="volvo">Volvo</option>
                        <option value="saab">Saab</option>
                        <option value="fiat">Fiat</option>
                        <option value="audi">Audi</option>
                    </select>
                    <button id='test' type="button">测试</button>
                </form>
            </div>
        </div>
    </div>
</body>
<script>
    $(function () {
        $('#test').on('click', (e) => {
            e.preventDefault();
            console.log('====================================');
            console.log($('#select').val());
            console.log('====================================');
        })
    })
</script>

</html>